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2Shee`ts-Sheet 1. F. DEIMEL. ROTARY FLOAT.

Patented Oct. 28, 1890.

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nU Nw N UNITED STATES PATENT OFFICE. v

FRITZ DEIMEL, OF BERLIN, GERMANY.V

RQTARY FLOAT.

SPECIFICATION forming part of Letters Patent No. 439,124, dated October 28, 1890.

APPHUB'OD filed December 3, 1889. Serial No. 332,410. (No model.) Patentedin Germany April 14, 1889', No. 49,760; in France July 16, 1889, No. 199,621; in NorwayAugust 23, 1889, No.1,481; in Belgium September 7,1889, No, 87,661; in Italy September 30, 1889, No. 26,055/461; in England October `26, 1889, No. 13,076; in Switzerland November 27, 1889, No.

1,520, and inAustria-Huugary December 30, 1889, No. 36,126 and No. 64,578.

.To @ZZ whom may concern:

Be it known that I, FRITZ DEIMEL, a subject of the King of Prussia, residing in Berlin, Germany, have invented certain new and useful vImprovements in Rotary Floats, (for which I have obtained patents in Germany April 14, 1889, No. 49,7 5 in France July 16, 1889, No. 199,621; in Austria-HungaryDecember 30, 1889, No. 36,126 and No. 64,57 8 in Norway August 28, 1889, No. 1,481; in Italy September 30, 1889, No. 26,055/461; in Great Britain October 26,1889, No. 13,076; in Switzerland November 27, 1889, No. 1,520, and in Belgium September 7, 1889, No. 87,661,) of which the following is a full, clear, and eX- act description.

VThe usual form of floats, which act merely by their buoyancy, present the disadvantage that they must be of a comparatively very large size if the closing of the inlet-opening which is eected by them shall be assured at' all times and under all circumstances. If such a float is to be used in a iiuid of a very small density and specific weight, it must have such large dimensions, if it is to eect a somewhat tight closing of the inlet, that its practical use is very limited.

The present invention has for its object to construct a float having water deflecting guides or conduits, which is rotated by the action of the liquidl on said guides and thus effects a tight and perfect closing of the valve which the float operates. The float may also have combined with it a screw by which said rotation causes it to be raised to operate the valve independently of the mere buoyancy of the iioat.

In the annexed drawings, which form a part of this speciication,Figure 1 is a side elevation of my improved float, showing the same in position within a reservoir. Figs. 2

'and 3 are plan views of modiiied forms of the float. Figs. 4, 5, 6, 7, and 8 also show modified forms of the oat and valve mechanism.

The float B rests in the receptacle A,which carries on its bottom a small inwardlyfthreaded tube a. This float is usually hollow and has a conical or spherical shape. Its surface is provided with sloping or turbine-like ribs b b', or with oblique `or curved grooves. At the bottom of the float B is arranged a threaded stud d, fitting into the in wardly-threaded tube a, and preferably provided at its lower end with a guide-pin e, which will materially facilitate the adjustment of the float. At the upper end of the iioat is adjusted a little cone lo, which when in therequired position will'close the mouthv of the inlet f when the cover C of the reservoir is put in place. For the same purpose, as heretofore explained, it

is preferable to provide the cone la also with a l the inlet flows upon the float B and presses Y Y the ribs b b', thereby rotating the float. The weight of the float will prevent the rotation until the liquid rising in the'reservoir A will lighten the float so that the driving-power of the en tering liquid will be the stronger. The iioat B consequently rotates and is screwed upward by means of its stud arranged in the inwardly-threaded tube a until the cone k will have regulated the feed-opening in correspondence with the discharge of the liquid.

If the discharge-opening D is closed, the inlet will also be closed automatically by the two forces acting upon the loat-viz., the buoyancy of the float and the' inflowing rotary force created by the action of the entering liquid upon the ribs of the float. The combination of these two forces will cause a perfectly tight and elfective closing of the inlet-opening.

A further important feature of this float is that in consequence of the rotation the closing-cone will be automatically'kept clean, and thus be able to close the inlet tightly and effectively.

Instead of the arrangement j ust described, the closing device can be constructed as shown in Fig 5,

The elastic closing-plate i, provided with a solid pressing-plate h, is guided in a suitable manner in the inlet-tube f, and the float Bv carries at its upper end a plain stud 71: instead of the cone 70.

Instead of' arranging the threaded rod CZ in the center of the iloat, as is done in the constructions shown in Figs. l and 4, it can also be arranged in the periphery of the lioat B, Fig. 5, in which case the liquid surrounding the iioat acts as a nut. When the ioat is raised by the ascending force of the flowing liquid, the screw-thread arranged on the periphery of the float will act just like the thread-stud d, Figs. 1 and 4, is acting, in combination with the inwardly-threaded tube. Consequently the iioat B is not merely raised while rotating, but it screws itself upward in the surrounding liquid. The stud lo presses the closing-plate against the mouth of the inlet in such an eective way, in consequence of the spiral action of the fioat, that in this construction,I likewise obtain a perfectlytight closing.

Instead of arranging the closing-plate at the mouth of the inlet, it can, as shown in Fig. 8, be connected directly with the stud k. In this case the closing-plate must be connected with the stud so as to be allowed a rotary motion, so that the stud can rotate without carrying along the plate, as otherwise the plate would be soon spoiled.

When the screw-thread is arranged on the periphery of the float, Fig. 4, the sloping or turbine-like ribs h b', Figs. 2 and 3, can be dispensed with, as the screw-thread will have the same effect as said ribs.

As the above-mentioned sloping ribs have only for their object to rotate the iioat B through the medium of the entering liquid, they can of course be replaced by other suitable arrangements having the same effect. In the constructions shown in Figs. 6 and 7, I attain this purpose by inserting reactiontubes. The screw around the iioat on the threaded stem under the iioat can also be replaced by other suitable devices having the same effect. The screw d may, if desired, be formed upon the upper end of the-float and engaged with a correspondingly-threaded part carried by the inlet-pipe, as shown in Fig. 4.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is as follows:

l. A iioat provided with inclined water-delecting guides or conduits whereby the flow of water is caused to rotate the lioat, combined with a valve operated by said float, substantially as set forth. Y

2. A float provided with inclined water-deccting guides or conduits whereby the ow of water is caused to rotate the ioat, combined with a valve operated bysaid float@ stationary screw-threaded part, and a correspondinglyscrew-threaded part engaging the former and carried by the iloat, substantially as set forth.

3. The combination, with a casing having an Aentrance for fluid, of a iioat carrying a valve adapted to close said entrance, the latter devices being provided upon the top opposite to the entrance with ribs substantially tangential to circles described about the Vertical axes of the float and valve, whereby the inflow of fluid is caused to rotate the float and valve, substantially as set forth. 

